1 files changed, 13 insertions, 15 deletions

diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index cda02265732..b4a0de79c06 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -57,7 +57,7 @@ static inline int config_access_valid(struct pci_dn *dn, int where)
 
 static int of_device_available(struct device_node * dn)
 {
-        char * status;
+        const char *status;
 
         status = get_property(dn, "status", NULL);
 
@@ -81,8 +81,7 @@ int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
         if (!config_access_valid(pdn, where))
                 return PCIBIOS_BAD_REGISTER_NUMBER;
 
-        addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
-                (pdn->devfn << 8) | (where & 0xff);
+        addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
         buid = pdn->phb->buid;
         if (buid) {
                 ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
@@ -134,8 +133,7 @@ int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
         if (!config_access_valid(pdn, where))
                 return PCIBIOS_BAD_REGISTER_NUMBER;
 
-        addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
-                (pdn->devfn << 8) | (where & 0xff);
+        addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
         buid = pdn->phb->buid;
         if (buid) {
                 ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr,
@@ -178,7 +176,7 @@ struct pci_ops rtas_pci_ops = {
 
 int is_python(struct device_node *dev)
 {
-        char *model = (char *)get_property(dev, "model", NULL);
+        const char *model = get_property(dev, "model", NULL);
 
         if (model && strstr(model, "Python"))
                 return 1;
@@ -234,7 +232,7 @@ void __init init_pci_config_tokens (void)
 unsigned long __devinit get_phb_buid (struct device_node *phb)
 {
         int addr_cells;
-        unsigned int *buid_vals;
+        const unsigned int *buid_vals;
         unsigned int len;
         unsigned long buid;
 
@@ -247,7 +245,7 @@ unsigned long __devinit get_phb_buid (struct device_node *phb)
         if (phb->parent->parent)
                 return 0;
 
-        buid_vals = (unsigned int *) get_property(phb, "reg", &len);
+        buid_vals = get_property(phb, "reg", &len);
         if (buid_vals == NULL)
                 return 0;
 
@@ -264,10 +262,10 @@ unsigned long __devinit get_phb_buid (struct device_node *phb)
 static int phb_set_bus_ranges(struct device_node *dev,
                               struct pci_controller *phb)
 {
-        int *bus_range;
+        const int *bus_range;
         unsigned int len;
 
-        bus_range = (int *) get_property(dev, "bus-range", &len);
+        bus_range = get_property(dev, "bus-range", &len);
         if (bus_range == NULL || len < 2 * sizeof(int)) {
                 return 1;
         }
@@ -325,15 +323,15 @@ unsigned long __init find_and_init_phbs(void)
          * in chosen.
          */
         if (of_chosen) {
-                int *prop;
+                const int *prop;
 
-                prop = (int *)get_property(of_chosen, "linux,pci-probe-only",
-                                           NULL);
+                prop = get_property(of_chosen,
+                                "linux,pci-probe-only", NULL);
                 if (prop)
                         pci_probe_only = *prop;
 
-                prop = (int *)get_property(of_chosen,
-                                           "linux,pci-assign-all-buses", NULL);
+                prop = get_property(of_chosen,
+                                "linux,pci-assign-all-buses", NULL);
                 if (prop)
                         pci_assign_all_buses = *prop;
         }